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Administrative discretion
Havighurst, Clark C., (1972)
Grundzüge des Federal Administrative Procedure Act
Breuckmann, Elmar, (1962)
The District of Columbia Administrative Procedure Act : its history, provisions, and interpretation
Griffin, Joseph P., (1973)
The ʺimproper changeʺ and the contractor's right to stop work on U. S. Government contracts
Spriggs, William J., (1974)
The judicial role of the contracting officer in U.S. Government contracting
Spriggs, William J., (1972)